Good-bye, Richard, and good luck. See you in two weeks.
再见, Richard, 祝你好运。两周后见。
No. Forget about it. It's not important.
哪儿的话,别提这件事了,那不算什么。
Even if one didn't know from concrete examples (the 1936 Olympic Games, for instance) that international sporting contests lead to orgies of hatred, one could deduce if from general principles.